Pat the beef chuck roast dry with paper towels. Rub with olive oil, salt, pepper, garlic powder, and onion powder.
Heat a skillet over medium-high heat and sear the beef on all sides until browned (about 3–4 minutes per side).
Transfer the roast to the Crockpot.
In a bowl, mix beef broth, Worcestershire sauce, and soy sauce. Pour over the beef.
Cover and cook on low for 8 hours until tender.
Remove the beef, let rest for 5 minutes, then shred using two forks.
Return shredded beef to the Crockpot and let it soak in the juices.
Slice hoagie rolls and toast with provolone cheese if desired.
Fill rolls with beef and serve with au jus for dipping.